Depressants are psychoactive drugs which temporarily diminish the normal function of the brain and central nervous system. These drugs include opiates<span> and </span>opioids<span>, </span>barbiturates<span>, </span>benzodiazepines<span>, </span>tranquilizers<span> and </span>alcohol<span>. Due to their effects, these drugs can be referred to as "downers". i hope this helps :)</span>
The social side because you can talk to others about your problems. hope this helped! ^^
It would all of the above. As you need all of them for a healthy body.
For this answer I would go with D. Retinalogic. It is not a vitamin.